期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 44, 期 50, 页码 27354-27362出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2019.08.172
关键词
Supramolecular self-assembly approach; Carbon self-doped g-C3N4; Photocatalytic hydrogen generation
资金
- National Natural Science Foundation of China [51502092]
- Fundamental Research Funds for the Central Universities [222201718002]
- Thousand Talents Program Young Project in China
- Program for Eastern Scholar at Shanghai Institutions of Higher Learning [TP2015028]
- Undergraduate Innovation and Entrepreneurship Training Program [X19122]
Novel carbon self-doped graphitic carbon nitride tube (denoted as C-CNT) was fabricated by the means of a facile in situ solvothermal method with melamine and glucose as precursor and additive, respectively. The C-CNT not only remained unique hexagonal tubular structure obtained from supramolecular self-assembly method, but also introduced aromatic carbon into CN framework under the glucose-assisted hydrothermal conditions. The as-prepared C-CNT exposed abundant nitrogen defects and dramatically improved the valid separation of photoexcited charge carriers, hence achieving excellent photocatalytic hydrogen evolution activity (32.3 mu mol h(-1), lambda > 420 nm), which was up to 4.24 and 12-folds higher than pristine carbon nitride tube (CNT) and traditional bulk counterpart (BCN), respectively. Therefore, this work highlights an assisted hydrothermal approach to successfully prepare carbon-rich graphitic carbon nitride with hexagonal tubular structure. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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